Mercurial > octave
annotate libinterp/parse-tree/pt-check.cc @ 25337:3ff9192b676e
use auto keyword to declare iterator variables where possible
* dialog.cc, files-dock-widget.cc, history-dock-widget.cc,
file-editor.cc, octave-qt-link.cc, call-stack.cc, debug.cc,
dynamic-ld.cc, fcn-info.cc, fcn-info.h, genprops.awk, graphics.cc,
gtk-manager.cc, gtk-manager.h, hook-fcn.h, load-path.cc, load-save.cc,
ls-mat5.cc, mex.cc, oct-map.cc, oct-stream.cc, octave-link.cc,
regexp.cc, symscope.h, symtab.h, txt-eng.h, url-handle-manager.cc,
variables.cc, ov-base.cc, ov-class.cc, ov-classdef.cc,
ov-fcn-handle.cc, ov-java.cc, ov-struct.cc, bp-table.cc, jit-ir.cc,
jit-typeinfo.cc, pt-arg-list.cc, pt-arg-list.h, pt-array-list.cc,
pt-check.cc, pt-classdef.cc, pt-decl.h, pt-eval.cc, pt-idx.cc,
pt-jit.cc, pt-misc.cc, pt-pr-code.cc, pt-select.h, pt-stmt.h,
caseless-str.h, lo-regexp.cc:
Use auto keyword to declare iterator variables where possible.
Style fixes.
author | John W. Eaton <jwe@octave.org> |
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date | Wed, 02 May 2018 01:36:20 -0400 |
parents | 6652d3823428 |
children | 00f796120a6d |
rev | line source |
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3011 | 1 /* |
2 | |
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3 Copyright (C) 1996-2018 John W. Eaton |
3011 | 4 |
5 This file is part of Octave. | |
6 | |
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7 Octave is free software: you can redistribute it and/or modify it |
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8 under the terms of the GNU General Public License as published by |
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9 the Free Software Foundation, either version 3 of the License, or |
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10 (at your option) any later version. |
3011 | 11 |
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12 Octave is distributed in the hope that it will be useful, but |
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13 WITHOUT ANY WARRANTY; without even the implied warranty of |
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14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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15 GNU General Public License for more details. |
3011 | 16 |
17 You should have received a copy of the GNU General Public License | |
7016 | 18 along with Octave; see the file COPYING. If not, see |
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19 <https://www.gnu.org/licenses/>. |
3011 | 20 |
21 */ | |
22 | |
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23 #if defined (HAVE_CONFIG_H) |
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24 # include "config.h" |
3011 | 25 #endif |
26 | |
27 #include "error.h" | |
28 #include "input.h" | |
29 #include "ov-usr-fcn.h" | |
30 #include "pt-all.h" | |
31 | |
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32 namespace octave |
3011 | 33 { |
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34 void |
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35 tree_checker::visit_argument_list (tree_argument_list& lst) |
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36 { |
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37 auto p = lst.begin (); |
3011 | 38 |
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39 while (p != lst.end ()) |
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40 { |
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41 tree_expression *elt = *p++; |
3011 | 42 |
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43 if (elt) |
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44 { |
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45 if (m_do_lvalue_check && ! elt->lvalue_ok ()) |
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46 errmsg ("invalid lvalue in multiple assignment", elt->line ()); |
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47 } |
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48 } |
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49 } |
3011 | 50 |
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51 void |
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52 tree_checker::visit_binary_expression (tree_binary_expression& expr) |
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53 { |
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54 tree_expression *op1 = expr.lhs (); |
3011 | 55 |
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56 if (op1) |
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57 op1->accept (*this); |
3011 | 58 |
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59 tree_expression *op2 = expr.rhs (); |
3011 | 60 |
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61 if (op2) |
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62 op2->accept (*this); |
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63 } |
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64 |
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65 void |
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66 tree_checker::visit_break_command (tree_break_command&) |
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67 { } |
3011 | 68 |
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69 void |
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70 tree_checker::visit_colon_expression (tree_colon_expression& expr) |
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71 { |
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72 tree_expression *op1 = expr.base (); |
3011 | 73 |
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74 if (op1) |
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75 op1->accept (*this); |
3011 | 76 |
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77 tree_expression *op3 = expr.increment (); |
3011 | 78 |
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79 if (op3) |
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80 op3->accept (*this); |
3011 | 81 |
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82 tree_expression *op2 = expr.limit (); |
3011 | 83 |
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84 if (op2) |
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85 op2->accept (*this); |
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86 } |
3011 | 87 |
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88 void |
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89 tree_checker::visit_continue_command (tree_continue_command&) |
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90 { } |
3011 | 91 |
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92 void |
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93 tree_checker::visit_decl_command (tree_decl_command& cmd) |
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94 { |
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95 tree_decl_init_list *init_list = cmd.initializer_list (); |
3011 | 96 |
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97 if (init_list) |
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98 init_list->accept (*this); |
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99 } |
3011 | 100 |
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101 void |
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102 tree_checker::visit_decl_init_list (tree_decl_init_list& lst) |
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103 { |
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104 auto p = lst.begin (); |
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105 |
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106 while (p != lst.end ()) |
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107 { |
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108 tree_decl_elt *elt = *p++; |
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109 |
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110 if (elt) |
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111 elt->accept (*this); |
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112 } |
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113 } |
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114 |
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115 void |
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116 tree_checker::visit_decl_elt (tree_decl_elt& cmd) |
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117 { |
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118 tree_identifier *id = cmd.ident (); |
3011 | 119 |
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120 if (id) |
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121 id->accept (*this); |
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123 tree_expression *expr = cmd.expression (); |
3011 | 124 |
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125 if (expr) |
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126 expr->accept (*this); |
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127 } |
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129 void |
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130 tree_checker::visit_simple_for_command (tree_simple_for_command& cmd) |
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131 { |
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132 tree_expression *lhs = cmd.left_hand_side (); |
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134 if (lhs) |
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135 { |
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136 if (! lhs->lvalue_ok ()) |
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137 errmsg ("invalid lvalue in for command", cmd.line ()); |
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138 } |
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140 tree_expression *expr = cmd.control_expr (); |
3011 | 141 |
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142 if (expr) |
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143 expr->accept (*this); |
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145 tree_expression *maxproc = cmd.maxproc_expr (); |
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146 |
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147 if (maxproc) |
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148 maxproc->accept (*this); |
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149 |
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150 tree_statement_list *list = cmd.body (); |
3011 | 151 |
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152 if (list) |
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153 list->accept (*this); |
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154 } |
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156 void |
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157 tree_checker::visit_complex_for_command (tree_complex_for_command& cmd) |
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158 { |
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159 tree_argument_list *lhs = cmd.left_hand_side (); |
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161 if (lhs) |
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162 { |
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163 int len = lhs->length (); |
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165 if (len == 0 || len > 2) |
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166 errmsg ("invalid number of output arguments in for command", |
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167 cmd.line ()); |
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169 m_do_lvalue_check = true; |
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171 lhs->accept (*this); |
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173 m_do_lvalue_check = false; |
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174 } |
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176 tree_expression *expr = cmd.control_expr (); |
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178 if (expr) |
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179 expr->accept (*this); |
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181 tree_statement_list *list = cmd.body (); |
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183 if (list) |
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184 list->accept (*this); |
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185 } |
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187 void |
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188 tree_checker::visit_octave_user_script (octave_user_script& fcn) |
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189 { |
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190 tree_statement_list *cmd_list = fcn.body (); |
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191 |
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192 if (cmd_list) |
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193 cmd_list->accept (*this); |
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194 } |
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195 |
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196 void |
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197 tree_checker::visit_octave_user_function (octave_user_function& fcn) |
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198 { |
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199 tree_statement_list *cmd_list = fcn.body (); |
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201 if (cmd_list) |
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202 cmd_list->accept (*this); |
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203 } |
3011 | 204 |
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205 void |
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206 tree_checker::visit_function_def (tree_function_def& fdef) |
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207 { |
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208 octave_value fcn = fdef.function (); |
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209 |
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210 octave_function *f = fcn.function_value (); |
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211 |
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212 if (f) |
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213 f->accept (*this); |
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214 } |
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215 |
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216 void |
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217 tree_checker::visit_identifier (tree_identifier& /* id */) |
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218 { } |
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220 void |
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221 tree_checker::visit_if_clause (tree_if_clause& cmd) |
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222 { |
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223 tree_expression *expr = cmd.condition (); |
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225 if (expr) |
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226 expr->accept (*this); |
3011 | 227 |
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228 tree_statement_list *list = cmd.commands (); |
3011 | 229 |
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230 if (list) |
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231 list->accept (*this); |
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232 } |
3011 | 233 |
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234 void |
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235 tree_checker::visit_if_command (tree_if_command& cmd) |
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236 { |
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237 tree_if_command_list *list = cmd.cmd_list (); |
3011 | 238 |
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239 if (list) |
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240 list->accept (*this); |
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241 } |
3011 | 242 |
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243 void |
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244 tree_checker::visit_if_command_list (tree_if_command_list& lst) |
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245 { |
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246 auto p = lst.begin (); |
3011 | 247 |
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248 while (p != lst.end ()) |
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249 { |
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250 tree_if_clause *elt = *p++; |
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252 if (elt) |
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253 elt->accept (*this); |
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254 } |
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255 } |
3011 | 256 |
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257 void |
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258 tree_checker::visit_index_expression (tree_index_expression& expr) |
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259 { |
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260 tree_expression *e = expr.expression (); |
3011 | 261 |
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262 if (e) |
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263 e->accept (*this); |
3011 | 264 |
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265 std::list<tree_argument_list *> lst = expr.arg_lists (); |
3933 | 266 |
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267 auto p = lst.begin (); |
3011 | 268 |
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269 while (p != lst.end ()) |
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270 { |
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271 tree_argument_list *elt = *p++; |
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273 if (elt) |
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274 elt->accept (*this); |
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275 } |
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276 } |
3011 | 277 |
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278 void |
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279 tree_checker::visit_matrix (tree_matrix& lst) |
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280 { |
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281 auto p = lst.begin (); |
3011 | 282 |
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283 while (p != lst.end ()) |
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284 { |
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285 tree_argument_list *elt = *p++; |
4219 | 286 |
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287 if (elt) |
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288 elt->accept (*this); |
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289 } |
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290 } |
3011 | 291 |
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292 void |
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293 tree_checker::visit_cell (tree_cell& lst) |
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294 { |
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295 auto p = lst.begin (); |
4219 | 296 |
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297 while (p != lst.end ()) |
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298 { |
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299 tree_argument_list *elt = *p++; |
3011 | 300 |
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301 if (elt) |
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302 elt->accept (*this); |
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303 } |
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304 } |
3011 | 305 |
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306 void |
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307 tree_checker::visit_multi_assignment (tree_multi_assignment& expr) |
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308 { |
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309 tree_argument_list *lhs = expr.left_hand_side (); |
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311 if (lhs) |
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312 { |
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313 m_do_lvalue_check = true; |
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315 lhs->accept (*this); |
3011 | 316 |
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317 m_do_lvalue_check = false; |
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318 } |
3011 | 319 |
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320 tree_expression *rhs = expr.right_hand_side (); |
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322 if (rhs) |
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323 rhs->accept (*this); |
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324 } |
3011 | 325 |
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326 void |
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327 tree_checker::visit_no_op_command (tree_no_op_command& /* cmd */) |
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328 { } |
3011 | 329 |
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330 void |
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331 tree_checker::visit_anon_fcn_handle (tree_anon_fcn_handle& /* afh */) |
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332 { } |
5861 | 333 |
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334 void |
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335 tree_checker::visit_constant (tree_constant& /* val */) |
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336 { } |
3011 | 337 |
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338 void |
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339 tree_checker::visit_fcn_handle (tree_fcn_handle& /* fh */) |
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340 { } |
4342 | 341 |
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342 void |
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343 tree_checker::visit_funcall (tree_funcall& /* fc */) |
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344 { } |
15035 | 345 |
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346 void |
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347 tree_checker::visit_parameter_list (tree_parameter_list& lst) |
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348 { |
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349 auto p = lst.begin (); |
3011 | 350 |
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351 while (p != lst.end ()) |
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352 { |
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353 tree_decl_elt *elt = *p++; |
3011 | 354 |
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355 if (elt) |
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356 elt->accept (*this); |
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357 } |
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358 } |
3011 | 359 |
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360 void |
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361 tree_checker::visit_postfix_expression (tree_postfix_expression& expr) |
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362 { |
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363 tree_expression *e = expr.operand (); |
3011 | 364 |
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365 if (e) |
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366 e->accept (*this); |
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367 } |
3011 | 368 |
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369 void |
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370 tree_checker::visit_prefix_expression (tree_prefix_expression& expr) |
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371 { |
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372 tree_expression *e = expr.operand (); |
3011 | 373 |
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374 if (e) |
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375 e->accept (*this); |
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376 } |
3011 | 377 |
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378 void |
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379 tree_checker::visit_return_command (tree_return_command&) |
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380 { } |
3011 | 381 |
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382 void |
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383 tree_checker::visit_return_list (tree_return_list& lst) |
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384 { |
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385 auto p = lst.begin (); |
3011 | 386 |
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387 while (p != lst.end ()) |
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388 { |
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389 tree_index_expression *elt = *p++; |
3011 | 390 |
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391 if (elt) |
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392 elt->accept (*this); |
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393 } |
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394 } |
3011 | 395 |
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396 void |
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397 tree_checker::visit_simple_assignment (tree_simple_assignment& expr) |
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398 { |
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399 tree_expression *lhs = expr.left_hand_side (); |
3011 | 400 |
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401 if (lhs) |
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402 { |
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403 if (! lhs->lvalue_ok ()) |
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404 errmsg ("invalid lvalue in assignment", expr.line ()); |
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405 } |
3011 | 406 |
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407 tree_expression *rhs = expr.right_hand_side (); |
3011 | 408 |
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409 if (rhs) |
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410 rhs->accept (*this); |
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411 } |
3011 | 412 |
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413 void |
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414 tree_checker::visit_statement (tree_statement& stmt) |
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415 { |
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416 tree_command *cmd = stmt.command (); |
3011 | 417 |
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418 if (cmd) |
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419 cmd->accept (*this); |
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420 else |
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421 { |
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422 tree_expression *expr = stmt.expression (); |
3011 | 423 |
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424 if (expr) |
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425 expr->accept (*this); |
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426 } |
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427 } |
3011 | 428 |
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429 void |
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430 tree_checker::visit_statement_list (tree_statement_list& lst) |
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431 { |
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432 for (tree_statement *elt : lst) |
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433 { |
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434 if (elt) |
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435 elt->accept (*this); |
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436 } |
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437 } |
3011 | 438 |
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439 void |
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440 tree_checker::visit_switch_case (tree_switch_case& cs) |
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441 { |
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442 tree_expression *label = cs.case_label (); |
3011 | 443 |
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444 if (label) |
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445 label->accept (*this); |
3011 | 446 |
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447 tree_statement_list *list = cs.commands (); |
3011 | 448 |
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449 if (list) |
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450 list->accept (*this); |
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451 } |
3011 | 452 |
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453 void |
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454 tree_checker::visit_switch_case_list (tree_switch_case_list& lst) |
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455 { |
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456 auto p = lst.begin (); |
3011 | 457 |
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458 while (p != lst.end ()) |
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459 { |
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460 tree_switch_case *elt = *p++; |
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462 if (elt) |
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463 elt->accept (*this); |
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464 } |
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465 } |
3011 | 466 |
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467 void |
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468 tree_checker::visit_switch_command (tree_switch_command& cmd) |
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469 { |
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470 tree_expression *expr = cmd.switch_value (); |
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472 if (expr) |
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473 expr->accept (*this); |
3011 | 474 |
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475 tree_switch_case_list *list = cmd.case_list (); |
3011 | 476 |
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477 if (list) |
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478 list->accept (*this); |
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479 } |
3011 | 480 |
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481 void |
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482 tree_checker::visit_try_catch_command (tree_try_catch_command& cmd) |
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483 { |
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484 tree_statement_list *try_code = cmd.body (); |
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486 tree_identifier *expr_id = cmd.identifier (); |
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487 |
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488 if (expr_id) |
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489 { |
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490 if (! expr_id->lvalue_ok ()) |
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491 errmsg ("invalid lvalue used for identifier in try-catch command", |
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492 cmd.line ()); |
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493 } |
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494 |
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495 if (try_code) |
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496 try_code->accept (*this); |
3011 | 497 |
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498 tree_statement_list *catch_code = cmd.cleanup (); |
3011 | 499 |
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500 if (catch_code) |
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501 catch_code->accept (*this); |
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502 } |
3011 | 503 |
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504 void |
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505 tree_checker::visit_unwind_protect_command (tree_unwind_protect_command& cmd) |
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506 { |
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507 tree_statement_list *unwind_protect_code = cmd.body (); |
3011 | 508 |
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509 if (unwind_protect_code) |
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510 unwind_protect_code->accept (*this); |
3011 | 511 |
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512 tree_statement_list *cleanup_code = cmd.cleanup (); |
3011 | 513 |
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514 if (cleanup_code) |
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515 cleanup_code->accept (*this); |
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516 } |
3011 | 517 |
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518 void |
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519 tree_checker::visit_while_command (tree_while_command& cmd) |
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520 { |
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521 tree_expression *expr = cmd.condition (); |
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523 if (expr) |
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524 expr->accept (*this); |
3011 | 525 |
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526 tree_statement_list *list = cmd.body (); |
3011 | 527 |
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528 if (list) |
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529 list->accept (*this); |
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530 } |
3011 | 531 |
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532 void |
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533 tree_checker::visit_do_until_command (tree_do_until_command& cmd) |
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534 { |
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535 tree_statement_list *list = cmd.body (); |
3011 | 536 |
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537 if (list) |
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538 list->accept (*this); |
4229 | 539 |
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540 tree_expression *expr = cmd.condition (); |
4229 | 541 |
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542 if (expr) |
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543 expr->accept (*this); |
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544 } |
4229 | 545 |
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546 void |
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547 tree_checker::errmsg (const std::string& msg, int line) |
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548 { |
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549 if (m_file_name.empty ()) |
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550 error ("%s", msg.c_str ()); |
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551 else |
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552 error ("%s: %d: %s", m_file_name.c_str (), line, msg.c_str ()); |
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553 } |
4229 | 554 } |